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A "pumpkin chucker" designed for the annual pumpkin competition held near Millsboro, delaware every fall (first week of November) uses a pneumatic launcher (air cannon) to throw its pumpkin. It is important to know if your "ammunition", the pumpkin, can withstand the force exerted on it during launch) otherwise it comes onto a solid wood board placed on the deck of their truck. The problem is that if the pumpkin bounces 1ft off the board after dropping from 5ft up, without obvious damage, the pumpkin is resilient enough to be used as ammo. What is the coefficient of restitution needed for good ammo?
air enters a compressor at ambient conditions of 100kpa and 17 degc with a low velocity and exits at 1mpa 327 degc and
Partial Auxiliary View showing the details of the inclined face - supply dimensions for the inclined face only. Select a suitable scale to make the drawing fit on an A3 drawing sheet.
a preheater involves the use of condensing steam at 100c on the inside ofnbspa bank of tubes to heat air that enters at
write a program that accepts a numerical value x from 0 to 100 as input and cmputes and displays the corresponding
A mass transfer tower operating at 1 atm and 300 K uses water, which enters free of ammonia at the top, to reduce the ammonia (NH3) concentration in air exhausted from a reactor. At one plane (W) in the tower, the concentrations of ammonia in the liq..
a 150 scale model is to be used in a towing tank to study the water motion near the bottom of a shallow channel as a
air contained within a piston-cylinder assembly undergoes three processes in series a. process 1-2 compression at
if the atmospheric pressure is 1.025 bar at a location where you can dive in a lake to 30ft below the surface and then
a pelton wheel is used to produce hydroelectric power. the average radius of the wheel is 1.83 m and the jet velocity
Estimate the Schmid Factor, which is used to convert the CRSS into a critical tensile 'yield' stress. Use the measured angle between the slip trace and the sample long axis
A load of lumber of weight W = 20 kN is being raised by a mobile crane. Knowing the tension is 20 kN in all portions of the cable AEF and that the weight of the boom ABC is 3 kN, determine (a) the tension in rod CD (b) the reaction at pin B.
aif a rod of 1025 steel 0.5 m 19.7 in long is heated from 20 to 80 deg c 68 to 176 deg f while its ends are maintained
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